<template>
  <div>
       <!-- 面包屑导航 -->
  <el-breadcrumb separator="/">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>数据统计</el-breadcrumb-item>
  <el-breadcrumb-item>数据报表</el-breadcrumb-item>
  </el-breadcrumb>
  <!-- 卡片视图 -->
  <el-card>
      <div id="main" style="width:600px;height:400px">

      </div>
  </el-card>
  </div>
</template>

<script>
//导入
import * as echarts from 'echarts';
import _ from 'lodash'
export default {
    data(){
        return{
            options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
        }
    },
    created(){
        //此时页面上元素已经被渲染完毕了
    },
   async mounted(){
        //基于准备好的dom初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
        const {data:res} = await this.$http.get('reports/type/1')
        //准备数据配置项
       const result = _.merge(res.data,this.options)
        //展示数据
        myChart.setOption(result);
    },
    methods:{

    }
}
</script>

<style>

</style>